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Technology for preparing composite packaging material by mixing waste paper and bamboos

A composite packaging material and waste paper technology, applied in textiles and papermaking, chemical instruments and methods, paper/cardboard layered products, etc., to achieve stable performance, simple process flow, and good toughness of bamboo

Active Publication Date: 2013-01-23
SHENZHEN YUTO PACKAGING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] We take advantage of the characteristics of uniform distribution of waste paper fibers and relatively stable physical properties. Through advanced production and processing technology, the whole bamboo (removing green and yellowing) is crushed into bamboo residue or bamboo pulp, and the fiber of bamboo is changed or reorganized. , mix with waste paper in a certain proportion, add fillers, stir at high speed, solve technical problems that are difficult to overcome at present, and create new waste paper and bamboo composite packaging materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] A process for preparing composite packaging materials by mixing waste paper and bamboo, comprising the following steps:

[0035] (1), preparation of cardboard:

[0036] (11), waste paper pretreatment:

[0037] Firstly, the impurities in the recycled waste paper are removed, the cleaned waste paper is deinked and the pulping method is used to make paper raw material pulp;

[0038] (12), preparation of mixed pulp:

[0039] Add 7% of flame retardant, 8% of moisture-proof material, 5% of filler and appropriate amount of anti-mold agent, foaming agent and plasticizer according to the weight of waste paper to the paper raw material slurry, and heat to 50-80 Stir evenly at ℃ for later use;

[0040] (13), cardboard forming:

[0041] Pour the mixed pulp into a flat mold, press down according to the required thickness and density at 150-170°C, and then dry it after demoulding;

[0042] (2), prepare paper bamboo mixed board:

[0043] (21), waste paper pretreatment:

[0044]...

Embodiment 2

[0054] A process for preparing composite packaging materials by mixing waste paper and bamboo, comprising the following steps:

[0055] (1), preparation of cardboard:

[0056] (11), waste paper pretreatment:

[0057]Firstly, the impurities in the recycled waste paper are removed, the cleaned waste paper is deinked and the pulping method is used to make paper raw material pulp;

[0058] (12), preparation of mixed pulp:

[0059] Add 7% of flame retardant, 8% of moisture-proof material, 5% of filler and appropriate amount of anti-mold agent, foaming agent and plasticizer according to the weight of waste paper to the paper raw material slurry, and heat to 50-80 Stir evenly at ℃ for later use;

[0060] (13), cardboard forming:

[0061] Pour the mixed pulp into a flat mold, press down according to the required thickness and density at 150-170°C, and then dry it after demoulding;

[0062] (2), prepare paper bamboo mixed board:

[0063] (21), waste paper pretreatment:

[0064] ...

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Abstract

The invention relates to a packaging material processing technology and discloses a technology for preparing a composite packaging material by mixing waste paper and bamboos. The technology comprises the following steps: (1) paperboard preparation: waste paper pretreatment, mixed paper pulp preparation and paperboard forming; (2) paper-bamboo mixed board preparation: waste paper pretreatment, bamboo pretreatment, paper-bamboo mixed pulp preparation and paper-bamboo mixed board forming; and (3) single-layer laminated board or double-layer laminated board processing. The packaging material produced by the technology has the advantages of environment friendliness, degradability, high product strength, high hardness, good toughness, wear resistance and the like.

Description

technical field [0001] The invention relates to a packaging material processing technology, in particular to a technology for preparing a composite packaging material by mixing waste paper and bamboo. Background technique [0002] A large amount of waste paper comes from our daily life, such as household appliances, consumer food, electronic products, and leftover waste paper from the packaging and printing industry. my country's waste paper recycling technology started relatively late, and the method is relatively single. Some waste paper is recycled as raw materials for papermaking, and some are used to make simple and rough low-end products such as fruit trays and egg trays. Recycling technology has not been more effectively and widely applied in industrial product packaging and food packaging, and application technology has not made further breakthroughs. There are very few leading enterprises that can drive the industrialization of waste paper recycling. [0003] In my ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21J3/12B32B29/02
Inventor 王华君车良
Owner SHENZHEN YUTO PACKAGING TECH
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